ABSTRACT On June 29, 2019, Carola Rackete docked the rescue ship Sea-Watch 3 on the Sicilian island of Lampedusa, in defiance of a ban imposed by Italy's Interior Minister Matteo Salvini. The migrants rescued by the Sea-Watch 3 had been blocked at sea for the previous two weeks, making it to international headlines and sparking a heated debate around sovereignty and humanitarianism in the face of the European migration crisis. On her arrival, Rackete was arrested for refusing to obey a military vessel and aiding illegal immigration. This paper investigates social media and international news discourses around the Sea-Watch 3 docking, to be regarded as a critical incident capable of catalysing attention and generating a significant media resonance. Results show how both social and traditional media contributed to the proliferation of misogynous attacks against Captain Rackete, at the intersection between right-wing populist discourses of Italian ‘sovranism’ and European anti-immigrationism. By triangulating the role of the media, intersectional hostility and populist ideology, this paper sheds light on how these three factors feed into each other in the discursive construction of the ‘Fortress Europe’ of present times.